Consider a beam of monochromatic radiation at wavelength λ that enter – McqOptions

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1.	Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity is given by
A.	d I λ X = – K λ I λ X d x
B.	d I λ X = – 2 K λ I λ X d x
C.	d I λ X = – 3 K λ I λ X d x
D.	d I λ X = – 4 K λ I λ X d x
Answer» B. d I λ X = – 2 K λ I λ X d x

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